Compilare: main.cpp: In function 'int main()': main.cpp:81:51: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nave_interdimensionale.in", "r", stdin); ^ main.cpp:82:53: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("nave_interdimensionale.out", "w", stdout); ^ main.cpp:85:25: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &n, &k); ^ main.cpp:87:27: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d", &x, &y); ^ main.cpp: In function 'int count_moves(int*, int)': main.cpp:75:17: warning: iteration 100004 invokes undefined behavior [-Waggressive-loop-optimizations] ans += modul(cnt[i]); ~~~~~^~~~~~~~ main.cpp:74:20: note: within this loop for(int i = 1; i <= COORD_MAX; i++) ~~^~~~~~~~~~~~ main.cpp:31:22: warning: iteration 100004 invokes undefined behavior [-Waggressive-loop-optimizations] neg[i] = (cnt[i] < 0) + neg[i - 1]; ~~~~~^ main.cpp:30:22: note: within this loop for(int i = 1; i <= COORD_MAX; i++) { ~~^~~~~~~~~~~~ main.cpp:24:12: warning: iteration 100004 invokes undefined behavior [-Waggressive-loop-optimizations] cnt[i] = 0; ~~~~~~~^~~ main.cpp:23:20: note: within this loop for(int i = 1; i <= COORD_MAX; i++) ~~^~~~~~~~~~~~